A. Because; so          
B. Although; but    
C. /; so                
D. Though;/

A. and                    
B. but
C. or                    
D. then

1. It was very hard for me to make a decision but I decided to leave my job. (改为同义句)
    It was very hard for me to ______ ______ _____ ______but I decided to leave my job.
2. at , desk , she , sat , the , down , reached , and , her , textbook,for(连词成句)
     ______________________________________________________________.
3. The young children , no matter what their ages , are fragile in your hands. (改为同义句)
    The young children , no matter ________ _______ _____ _______,are fragile in your hands.
4. We have been both excited and upset about growing up. (改为同义句)
    We have been ______ _______ excited _____ _______upset about growing up.

A. when                
B. if        
C. while            
D. as

A. so            
B. or            
C. and          
D. but